V8 crashing on toLocaleString()

[temuri416]

The following expression crashes V8JS:

var date = new Date("10/11/2009"),
    locale = "en-us",
    month = date.toLocaleString(locale, { month: "long" });

Results in:

 kernel: [10936.602251] traps: php-fpm[8516] trap invalid opcode ip:7f9239f2526f sp:7ffff8f825f8 error:0 in libv8_libbase.so[7f9239f16000+14000]

The problem is toLocaleString() call.

I realize it's not the fault of V8JS... But maybe @stesie has an idea of what's happening? It was fine with 5.5.x versions of V8.

Thanks!

[temuri416]

just as I suspected - v8_enable_i18n_support = false should also be supplied during configuration...

now everything works fine.

EDIT. Nope, .toLocaleString() no longer crashes V8, but does not return month name :(

[temuri416]

Decided to reopen... V8 itself handles toLocaleString() correctly:

Running:

/tmp/v8/out.gn/x64.release/d8

After compiling V8JS running the following:

$v8 = new V8Js;
$expr = 'new Date("10/11/2009").toLocaleString("en-us", { month: "long" });';
echo $v8->executeString($expr, null, V8Js::FLAG_FORCE_ARRAY);

results in:

#
# Fatal error in , line 0
# Failed to create ICU date format, are ICU data files missing?
#

==== C stack trace ===============================

    /opt/v8/lib/libv8_libbase.so(v8::base::debug::StackTrace::StackTrace()+0xe) [0x7f7874e1b32e]
    /opt/v8/lib/libv8_libplatform.so(+0x61b5) [0x7f7874e281b5]
    /opt/v8/lib/libv8_libbase.so(V8_Fatal+0xdd) [0x7f7874e191ed]
    /opt/v8/lib/libv8.so(+0x5a3ed0) [0x7f786fac4ed0]
    /opt/v8/lib/libv8.so(+0x7537bd) [0x7f786fc747bd]
    [0x39243ffbda18]
Received signal 4 ILL_ILLOPN 7f7874e1a26f
Illegal instruction (core dumped)

V8 compiles icudtl.dat and places it alongside libv8.so. Before compiling V8JS I copied icudtl.dat to /opt/v8/lib.

Could this be helpful?

https://groups.google.com/forum/embed/#!topic/v8-users/4DOD6z57xfU

Do you call V8::InitializeICU() or V8::InitializeICUDefaultLocation() before V8::Initialize()?

https://github.com/phpv8/v8js/blob/php7/v8js_v8.cc#L80

Any idea?

Thanks!

[duxet]

@temuri416 Same issue with the newest build of my Docker image:

#
# Fatal error in , line 0
# Failed to create ICU date format, are ICU data files missing?
#

==== C stack trace ===============================

    /usr/v8/lib/libv8_libbase.so(+0x1044e) [0x7f32fc53844e]
    /usr/v8/lib/libv8_libbase.so(V8_Fatal+0xdf) [0x7f32fc5363af]
    /usr/v8/lib/libv8.so(+0x5903b0) [0x7f32ef89c3b0]
    /usr/v8/lib/libv8.so(+0x75310d) [0x7f32efa5f10d]
    [0x1f5b578b5fc2]
Illegal instruction

[stesie]

I've got this to work on MacOS and Linux so far, see #307.

Yet I wonder how to fix it on Windows. @Jan-E could you please check whether the build of V8 on Windows also yields a icudtl.dat file? Your ZIP archives seem to not ship it, but I'd suppose it to be there

[Jan-E]

There was an icudtl.dll in the V8 versions 4.9, 5.1 and 5.4 and probably the versions in between as well. But it was not there anymore in 5.5.372.19 and more recent.

https://travis-ci.org/phpv8/v8js/builds/222213690 tells me you are using old versions of V8. You may have a task ahead; make it work in V8 5.5+ on Linux and MacOS

[stesie]

@Jan-E well yes, on Travis (Linux) I'm still using pretty old versions of V8. #307 actually fixes the bug there, yet Travis doesn't show it (but locally). For V8 5.3+ you need to point V8 to a icudtl.dat file (dat for data, not the dll file)

I'm asking regarding the windows build (https://ci.appveyor.com/project/stesie/v8js/build/1.0.180/job/pnyny5416tqnc9ko in particular), ... there I'm using the 5.8.301.0 build you've once provided. That one has V8 + icu ... yet the zip archive is missing a icudtl.dat file. However the error message pretty clearly says that it's missing a data file (also on Windows)

[Jan-E]

Aha, confused the dat and the dll. Did you try adding the Linux or macOS dat file to my zip? The dat file might be OS-independent...

Anyway, I did not save the build tree, so I am recompiling 5.8-lkgr at the moment. V8 5.8.283.31 that is.

[Jan-E]

Found it:

 Directory of D:\chromium\v8\v5.8\x64.release

05/04/17  06:50        10.166.816 icudtl.dat

It will take quite some time before I've got new builds. It is a lengthy process. However, it is the same as in

 Directory of D:\chromium\v8\third_party\icu\common

05/04/17  06:50        10.166.816 icudtl.dat

which seems to confirm that it is OS-independent.

[Jan-E]

https://phpdev.toolsforresearch.com/V8-5.8.283.31-x64.zip
The zip also contains the exe's for the unittests.

x86 is on its way.

[Jan-E]

https://phpdev.toolsforresearch.com/V8-5.8.283.31-x86.zip